Dispensing device for calking material and the like



DISPENSING DEVICE FOR CALKING MATERIAL AND THE LIKE Filed Feb. 21, 1950INVENTOR. 5221 Ma/AM flfx/maavay BY 2 g A m-%ys Patented Apr. 14, 1953UNITED STATES PATENT OFFICE DISPENSING DEVICE FOR CALKING MATERIAL ANDTHE LIKE The present invention relates to a dispensing device forcalking material and the like and more particularly to a device having ahandle assembly to which a cartridge of calking material may bedetachably secured, and plunger mechanism carried by the handle assemblyadapted to advance a piston through the cartridge and force the materialtherefrom. The present application is a continuation-in-part of myapplication Ser. No. 762,705, filed July 22, 1947, now abandoned.

The principal object of the invention is the provision of a new animproved dispensing device for calking material and the like comprisinga handle assembly having a seat for receiving one end of a cartridge, 2.plunger mechanism carried by the handle assembly adapted to advance apiston through the cartridge, and means for holding the cartridge to itsseat including a bail pivoted to the handle assembly and cooperatingwith an abutment means adapted to engage the outer end of the cartridge.In the preferred form of the invention, the abutment means shown is inthe form of a plate carried by the bail and having a grip member bywhich it is movable into and out of engagement with the cartridge.

Another object of the invention is the provision of a new and improveddevice of the character referred to in the preceding paragraph having aprojection extending from the cartridge engaging abutment means, whichprojection forms a lateral brace for a spout associated with thecartridge.

The invention resides in certain'constructions and combinations andarrangements of parts and further objects and advantages will beapparent to those skilled in the art to which it relates from thefollowing description of the preferred embodiments described withreference to the accompanying drawings forming a part of thisspecification, in which:

Fig. 1 is a perspective view of a calking gun having a cartridgeattached thereto;

Fig. 2 is a view of the calking gun shown in Fig. 1 but showing thecartridge removed and a portion of the gun broken away;

Fig. 3 is a fragmentary perspective view of one end of a bail forsecuring cartridges to the handle assembly of the gun;

Fig. 4 is a view taken substantially on line 4-4 of Fig. 3, but on alarger scale;

Fig. 5 is a view similar to Fig. 3 but showing another form of theinvention;

Fig. 6 is a sectional view taken on line 6-6 of Fig. 5; and

Fig. '7 is a view similar to Fig. 3, but showing still another form ofthe invention.

The present invention contemplates a dispensing device comprising ahandle assembly having a seat for receiving one end of amaterial-containing cartridge, a piston mechanism associated with thehandle and adapted to advance a piston through the cartridge to forcethe material therefrom and means for securing a cartridge in the seat.In the preferred form of the invention the means for securing thecartridge to the seat comprises a bail pivoted at one end to the handleassembly and cooperating with an abutment means at the opposite end,which abutment means is adapted to be held in snug-engagement with theouter end of the cartridge by the bail. Preferably, the abutment meanscomprises a plate carried by the bail and having a projection forming agrip by which the plate may be moved into and out of engagement with thecartridge by swinging movement of the bail.

In one form of the invention it is contemplated that the plate have aprojection adapted to engage a side of a spout structure associated withthe discharge end of the cartridge to reinforce or brace the spoutagainst lateral pressures.

Although the invention may be adapted to devices of diiferent forms anduses, it is particularly suitable when embodied in the form of a calkinggun for direct calking material into apertures or crevices in buildingwalls or other structures. Referring to the drawings, a calkin gun isshown which comprises a handle assembly preferably formed of achannel-shaped hand grip l I having the open side thereof forwardly orat the left, as viewed in Fig. 1. The upper portions of the hand gripmember extend forwardly and outwardly to form substantiallysemi-circular flanges l2, only one of which appears in the drawing.

A cartridge seat is carried by the handle assembly a d comprises a cupshape member I4 havin its closed end attached to the flanges I2. Themember I4 is adapted to receive one end of a suitable cylindricalcartridge, one of which is indicated at C, and locate the cartridge onthe handle. Any other suitable form of seat could be employed, althoughthe form shown is preferred.

A plunger mechanism is carried by the handle assembly and comprises apiston rod 15 slidingly carried in apertures through the handle andinner wall of the cup member I l. The rod may be rotated in theapertures. One end of the rod l5 has a piston l6 attached thereto andthe opposite end has a turned portion I! which forms a hand grip formanipulating the rod. A series of ratchet teeth I9 are formed along oneside of the rod I5, which teeth are adapted to be engaged by a triggermechanism which moves the rod to the left, as viewed in the drawing.

The trigger mechanism comprises a channelshaped hand lever or trigger 2Ipivoted between the sides of the handle II by a pin 22 and the triggeris normally urged from the handle by a spring 23 interposed between itand the handle. The upper end of the trigger extends beyond the pin 22and carries a pawl 25, the nose of which is adapted to engage the teethI9 of rod I5 when 7 the rod is angularly positioned with the teethlowermost. A spring 25 i provided for yieldingly maintaining the pawl 25in engagement with the rod I5. It will be apparent that when the trigger2I is drawn to the handle I I as by gripping the trigger and handle inthe hand, the rod I5 is moved a short distance to the left and into acartridge in the member I4. Preferably, a retaining pawl 21 is pivotedbetween the walls of the handle assembly by a pin 28 and the nose of theretaining pawl is adapted to engage the teeth I9 when the teeth arelowermost and prevent movement of the rod to the right which mightotherwisse occur when the trigger is released, due to the resilientnature of the material cartridge. The rod I5 may be disengaged from thepawls and moved to the right by turning the rod to disalign the teethand pawls.

The pawl and rack structure shown is not essential to the invention asany other suitable clutching mechanism could be employed to connect thetrigger and rod.

The cartridges of calking material which may be used with the calkinggun may be of any suitable formation, and for the purposes ofillustration, the cartridge C comprises an inexpensive tube 3 I,preferably formed of paper, and it is filled with a suitable calkingcompound. One end of the tube 3I referred to as the head end, is closedby a flanged end plate which frictionally engages the interior of thetube walls and which is engaged by the piston I6 and moved through thetube, to force the calking material from the other end or discharge endof the tube. The discharge end of the tube is closed by a plate 32having a flange encircling the outer end edge of the tubular member 3Iand, in one form of the invention, the plate 32 is provided with adischarge spout 33. The plane of the outer end of the spout slopesrelative to the spout axis to facilitate the application of the calkingmaterial to crevices and the like.

Any suitable means may be employed to prevent loss of calking materialthrough the spout during storage and shipment of the cartridge. Forexample, the spout may have a plug which can be forced from the spoutwhen the piston is urged against the opposite end of the cartridge, oras an alternative construction a separate closure plate may be providedhaving a frangible portion which ruptures to provide an opening for thecalking material to escape through the spout when appreciable force isapplied to the material in the cartridge.

The head end of cartridge C is adapted to be held in the cup member I4by a device comprising a resilient, wire bail 35 including two spacedcoextensive legs 36, 31 interconnected by a yoke portion 38. The legs36, 37 of the bail are pivotally attached to the handle II by formingloops or eyes 39 in the ends of the legs, which eyes are attached to themember I 4 by ears 40 struck from the sides of the member and foldedover the portions of the wire bail forming the eyes. The ball yoke 38preferably has an inverted U-shaped loop 42 which is adapted to restagainst the base of the sprout 33.

A circular plate 44 is pivotally attached to the yoke 38 by tabs 45, 46which are located on substantially a diametric axis of the plate and arestruck from the plate and are folded over the yoke wire. The diameter ofplate 44 is substantially the same as that of the cartridge and theplate has a U-shaped slot 4! adapted to receive the spout 33 'of thecartridge when the plate is positioned against the discharge end of thecartridge. In the preferred form of the invention, a forwardly extendinglug 48 is provided on the plate which forms a hand grip by which theplate and bail may be raised and lowered to remove the plate fromengagement with the discharge end of the cartridge.

It will be appreciated that the lengths of the cartridge C and the bailare such that when the head end of the cartridge is placed in the cupmember I4, the bail may be swung to position plate 44 in registrationand engagement with the discharge end of the cartridge so that the plateis urged against the cartridge end. It will be seen that the plate formsan abutment member with which the bail cooperates to urge the cartridgein the handle seat. By forming the bail of resilient wire, itresiliently urges the cartridges into the member I4 and although theremay be minor discrepancies in the dimensions of the cartridges employed,the latter are firmly held to the handle assembly. It will be noted thatby pivotally attaching the plate 44 to the yoke 38 the plate isself-centering on the end of the cartridge to provide substantiallyuniform engagement with the cartridge end wall.

In some instances, the user of the calking gun is apt to press thesloping end of the spout 33 against a surface having a crevice to becalked with such force that the spout may be loosened from the plate 32by the lateral pressure. To obviate this injury to the spout, anotherform of bail yoke plate may be provided having reinforcing means for thespout, which plate is shown at 50 in Figs. 5, 6. The plate 50 isattached to the yoke 38 and has a forwardly projecting member 5| whichis preferably formed of material cut from the plate to form a slot 52which receives the spout 33. The projection 5| preferably conforms inshape to the outside of the spout 33 and is adapted to engage one sideof the spout to reinforce or brace it against lateral pressures, therebyproviding a more rigid spout structure. Obviously, the brace member 5|need not be integral with the plate, but could be formed separately andattached to the plate as by welding or brazing.

It may be desirable to provide a cartridge from which the spout isomitted and a spout could be provided on the bail 35 as shown in Fig, 7.In this construction a plate 55 is substituted for plate 44 and theplate 55 has a spout 56 attached thereto through which the calkingmaterial may flow when the plate 55 is engaged over the cartridge end.As in the case of the plate 44, plate 55 has a hand grip 5! by which thebail and plate may be raised and lowered into and out of engagement withthe outer end of the cartridge, as described hereinbefore, withreference to plate 44.

From the foregoing description it will be apparent that all of theobjects enumerated as well as others have been accomplished and thatthere has been provided an inexpensive easily operated dispensing devicewhich provides for ready and secure connection of cartridges of calkingmaterial with the handle assembly. The invention further provides arugged structure for dispensing material through a spout.

While the preferred forms of the invention have been described inconsiderable detail, it will be apparent that the invention is notlimited to the constructions shown and it is my intention to coverhereby all adaptations, modifications and changes therein which comewithin the practice of those skilled in the art to which the inventionrelates and the scope of the appended claims.

Having thus described my invention, I claim:

1. In a dispensing apparatus for Viscous ma terial contained in a rigidcartridge having a head end and a discharge end, the combination of ahandle having a seat adapted to engage the head end of the cartridge, apusher carried by said handle and adapted to be advanced into thecartridge, mechanism operatively connected to said handle forcontrolling the advancing of said pusher, a wire bail anchored to thehandle and having its intermediate portion adapted to be swungtransversely of the length of the cartridge across the discharge end ofa cartridge seated against the handle, said intermediate portion of saidbail being looped, and a plate non-removably secured to saidintermediate portion of the bail adapted to engage the discharge end ofthe cartridge and having an opening for receiving a spout associatedwith the cartridge end engaged by said plate, said looped part of saidbail forming an opening in registration with the opening in said plate.

2. In a dispensing apparatus for viscous material contained in acartridge having a head end and a discharge end including a spout, thecombination of a handle having a seat adapted to receive the head end ofthe cartridge, a wire bail pivotally secured to said handle and havingits intermediate portion adapted to extend across the discharge end ofthe cartridge, said intermediate portion of said bail being looped toextend about the spout of the cartridge, a plate carried by saidintermediate portion in position to engage the discharge end of thecartridge, said plate having an opening for receiving the dischargespout of the cartridge, said plate having a forwardly extending memberprojecting from one side of the opening in said plate and adapted toengage a side of the spout projecting through the opening in said plateand reenforce the spout against a lateral force, said plate having aforwardly extending lip by which the same may be readily freed from thecartridge, and a manual operated device on the handle for extrudingmaterial from the cartridge.

3. In a dispensing apparatus for viscous material, a handle having aforwardly facing seat in which one end of a cartridge may be mounted, awire bail having its free ends pivotally anchored to said handle andhaving its intermediate portion adapted to extend across the outer endof the cartridge, the intermediate portions of the bail being looped outof range of the cartridge, and a plate pivotally secured to theintermediate portion of the ball at opposite sides of the loop thereofand adapted to engage the outer end of the cartridge engaged in saidseat.

4. In a dispensing apparatus for viscous material contained in acartridge having a head end and a discharge end, the combination of ahandle having a hand grip portion and a forwardly facing cartridge seat,a rod slidably mounted in the handle and extending through the cartridgeseat, a lever pivoted to the handle, mechanism operable by the lever tofeed the rod forwardly step by step, means for retaining the gain madein such feeding, a wire bail pivotally attached to opposite sides ofsaid handle and having its intermediate portion adap-ted to overhang theend of the cartridge having its other end in the cartridge seat, a platesecured to the inner side of the intermediate portion of the bail andadapted to engage the far end of the cartridge engaged in the seat, saidplate having an opening adapted to register with a central opening inthe discharge end of the cartridge, and a spout occupying the opening inthe plate and carried by the cartridge independently of the plate.

5. In a dispensing device for viscous material contained in a cartridge,a handle assembly having a cartridge seat, mechanism for forcingmaterial from the cartridge having one end in said seat, and meansholding the cartridge to said seat and including a plate movable intoand out of registration with the other end of said cartridge, said platehaving a projection extending outwardly thereof and adapted to engageone side of a spout associated with the cartridge and reinforce thespout against a lateral force.

6. In a dispensing device for viscous material contained in a cartridge,a handle assembly having a cartridge seat, mechanism for forcingmaterial from a cartridge having one end in said seat, and means holdingthe cartridge in said seat and including a plate movable into and out ofregistration with the other end of said cartridge, said plate having aportion turned outwardly therefrom to provide an aperture in the plateto receive a spout associated with the cartridge and to form aprojection adapted to engage one side of the spout to reinforce thespout against a lateral force.

7. In a dispensing device for viscous material, contained in acartridge, a handle assembly having a cartridge seat, mechanism forforcing material from a cartridge having one end in said seat, and meansholding the cartridge in said seat comprising, a bail pivotallyconnected at one end to said assembly, a plate attached to the yoke ofthe bail and movable into and out of registration with the other end ofsaid cartridge by swinging the bail on its pivot, said plate having aprojection extending outwardly thereof and adapted to engage one side ofa spout associated with the cartridge and reinforce the spout againstlateral force.

WILLIAM A. SHERBONDY.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,157,552 Kispert Oct. 19, 1915 1,279,069 Yoshida Sept. 17,1918 2,100,091 Tear Nov. 23, 1937 2,115,591 Sherbondy Apr. 26, 19382,367,347 Good Jan. 16, 1945 2,421,711 Moots June 3, 1947

